Bump tokio from 1.47.1 to 1.48.0 #643

Job	Run time
rust_ci (ubuntu-latest, stable)	1m 3s
rust_ci (ubuntu-latest, beta)	1m 33s
rust_ci (macos-latest, beta)	1m 47s
rust_ci (macos-latest, stable)	1m 28s
rust_ci (windows-latest, beta)	3m 16s
rust_ci (windows-latest, stable)	2m 31s
	11m 38s

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